An artist muted yellow with violet but the colour became too dark. What is the next suitable step?

Correct answer: Balance it with a little yellow or white

The governing concept is corrective colour mixing using small, controlled additions. Violet can mute yellow because the colours are complementary, but too much violet may lower the mixture’s value and make it too dark. Adding a little yellow can restore the dominant hue, while a little white can raise the value and lighten it. More violet or black would darken it further, and red is not the targeted correction. Thus, option C is correct.